<template>
  <div id="contsainer"></div>
</template>
<script>
export default {
  data() {
    return {
      viewer: null
    }
  },
  mounted() {
    this.initCesium()
    this.addCorridorOutlineGeometry(this.viewer)
  },
  methods: {
    initCesium() {
      this.viewer = new Cesium.Viewer('contsainer', {
        animation: false,
        baseLayerPicker: false,
        fullscreenButton: false,
        geocoder: false,
        homeButton: false,
        infoBox: false,
        sceneModePicker: false,
        navigationHelpButton: false,
        scene3DOnly: true,
        timeline: false,
        selectionIndicator: false, //是否显示选取指示器组件
        shouldAnimate: false, //自动播放动画控件
        shadows: true, //是否显示光照投射的阴影
        terrainShadows: Cesium.ShadowMode.RECEIVE_ONLY, //地质接收阴影
        sceneMode: Cesium.SceneMode.SCENE3D
      })
      this.viewer._cesiumWidget._creditContainer.style.display = 'none' //	去除版权信息
    },
    addCorridorOutlineGeometry(viewer) {
      let corridor = new Cesium.CorridorOutlineGeometry({
        positions: Cesium.Cartesian3.fromDegreesArray([-80.0, 40.0, -85.0, 40.0, -85.0, 35.0]),
        width: 100000
      })

      let geometry = Cesium.CorridorOutlineGeometry.createGeometry(corridor)

      let boxInstance = new Cesium.GeometryInstance({
        geometry: geometry,
        attributes: {
          color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.BLUE)
        },
        id: 'top'
      })

      let primitive = new Cesium.Primitive({
        geometryInstances: [boxInstance],
        asynchronous: false, //是否采用多线程
        appearance: new Cesium.PerInstanceColorAppearance({
          translucent: false, //半透明
          flat: true, //当 true 时，片段着色器中将使用平面阴影，这意味着不考虑光照
          renderState: {
            lineWidth: Math.min(4.0, viewer.scene.maximumAliasedLineWidth)
          }
        })
      })

      viewer.scene.primitives.add(primitive)
    }
  }
}
</script>
<style scoped>
#contsainer {
  height: 100%;
  width: 100%;
  background-color: red;
}
</style>
